Home / 527,090.64-727,376.40-285,371.28

Finding the Fourth Proportional to 527,090.64, 727,376.40 and 285,371.28

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Solution

The fourth proportional to 527,090.64, 727,376.40 and 285,371.28 is: 393,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,090.64 : 727,376.40 = 285,371.28 : x
  2. Step 2: Convert to fraction form
    527,090.64/727,376.40 = 285,371.28/x
  3. Step 3: Cross multiply
    527,090.64x = 727,376.40 × 285,371.28
  4. Step 4: Simplify right side
    527,090.64x = 207,572,334,309.79
  5. Step 5: Solve for x
    x = 207,572,334,309.79/527,090.64
  6. Step 6: Final answer
    x = 393,807.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.